William w



(No Model.)

W. W. LEAK.

- PLOW. No. 443,579. Patented Deo. 30, 1890.

l umiif nu` W/TNESSES A TTHNE YS UNITED STATES PATENT EEicE.

-WILLIAM lV. LEAK, OF MONTGOMERY, ALABAMA.

PLOW.

SPECIFICATION forming part of Letters Patent No. 443,579, dated December30, 1890.

Application tiled April 23, 1890. Serial No. 349,181. (No model.)

To all whom, t may concern:

Be it known that I, WILLIAM W. LEAK, of Montgomery, in the county ofMontgomery and State of Alabama, have invented a new and usefulImprovement in Plows, of which the following is a specification.

My invention is an improvement in that class of plows in which thepoints or sweepblades are made of metal sufiiciently thin to form anedge, and so avoid the necessity of sharpening and resliarpening thesaid sweepblades.

The invention consists in certain novel constructions and combinationsof parts, as will be hereinafter described, and pointed out in theclaims.

In the drawings, Figure 1 is a top plan view, and Fig. 2 is a bottomplan View, of my improved device; and Fig. 3 is a cross-section on aboutline 3 3 of Fig. l.

The point or blade Ais made of metal sufIiciently thin to presentedgewise practicallya cutting-edge, and is formed of side sections orwings a a, which meet at point a' and form a V shape, as shown. As thesepoints are of light thin metal, it becomes necessary to brace the point,and it is desirable to effect the bracing in such manner as to avoid theaddition of any considerable weight to the blade to permit the soilthrown up by the blade to pass readily through and to render thereplacing of the wearing parts of such bracing construction easy andinexpensive.

To this end I make the bracing construction in the form of a frameconsisting, as shown, of cross-bar B and the connecting-bar C, whichform a T, as shown. The bar B extends between the wings a, and issecured rigidly to both such wings at a point near their free ends,usually by riveting, as shown.

The bar C connects at its free end with the under side of the bladeA atthe point thereof or juncture of the Wings ct, and is preferably securedby riveting, as shown. At its opposite end the bar C laps against thebar B at the middle of the latter, and both bars B and C have coincidentholes for the heel-screw of the plow, so that the said bars B and C aresecured by the same screw which fastens the plow to its standard orsupport. The bars B and C form a positive brace and enable the use ofmuch thinner steel than could be otherwise used. The bar B is subjectlto no considerable wear, and is practically indestructible, while thebar C, if worn at its point, may be removed and resharpened, or may bereplaced at a slight cost. The brace-frame being open also permits thefree passage of the soil thrown up by the sweepblade.

By using bars B and C, as shown, l dispense with all useless material,and so lighten and cheapen the construction.

The point or blade A may be secured to the plow stock or standard D bymeans of the screw or bolt CZ, passed through the bars B and C at theirjuncture, and then through the part D and secured by a nut or in othersuitable manner.

Having thus described my invention, what I claim as new isna l. Thecombination, substantially as described, of the V-shaped sweep havingits side wings diverging from its point, and the T- shaped openbrace-frame having its arms secured t0 the sweep at the point thereofand at or near the free ends of its side wings, all substantially asdescribed, and for the purposes set forth.

-2. The improvement in plows, substantially as herein described,consisting of the V- shaped sweep having the side Wings united at oneend, the cross-bar B, extended between and secured to such wings neartheir free ends, and the bar C, secured at one end to the sweep at thejuncture of its wings and connected at its opposite end with thecross-bar B at about/the middle of the latter, substantially as setforth.

WILLIAM W. LEAK. Witnesses: E. E. SIMPSON,

J. F. DENNIS.

